<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
</head>
<body>
    <script type="text/javascript">
        if (!Math.imul) Math.imul = function(a, b) {
          var aHi = (a >>> 16) & 0xffff;
          var aLo = a & 0xffff;
          var bHi = (b >>> 16) & 0xffff;
          var bLo = b & 0xffff;
          // the shift by 0 fixes the sign on the high part
          // the final |0 converts the unsigned value into a signed value
          return ((aLo * bLo) + (((aHi * bLo + aLo * bHi) << 16) >>> 0) | 0);
        };

        if (!Math.clz32) Math.clz32 = (function(log, LN2){
          return function(x) {
            // Let n be ToUint32(x).
            // Let p be the number of leading zero bits in 
            // the 32-bit binary representation of n.
            // Return p.
            var asUint = x >>> 0;
            if (asUint === 0) {
              return 32;
            }
            return 31 - (log(asUint) / LN2 | 0) |0; // the "| 0" acts like math.floor
          };
        })(Math.log, Math.LN2);
    </script>
    <!-- removing this line will make it work -->
    <script src="https://dl.dropboxusercontent.com/s/r55397ld512etib/EncoderDecoderTogether.min.js?dl=0" nomodule="" type="text/javascript"></script>
    <script src="https://cdn.jsdelivr.net/npm/promise-polyfill@8/dist/polyfill.min.js"></script>
    <script type="text/javascript" src="../lib/olm/olm_legacy.js"></script>
    <script type="text/javascript">
        window.Olm.init().then(function() {
            const bytes = [
                34, 123, 54,  9, 124,  89, 230, 120,
                43, 232, 19, 78, 129, 170, 255,   5,
                90, 143, 56, 99, 101, 140, 240,   3,
                 7, 121, 41, 22,  67, 231,  85,  32
            ];
            var privKey = new Uint8Array(32);
            for (var i = bytes.length - 1; i >= 0; i--) {
                privKey[i] = bytes[i];
            }
            console.log("privKey", privKey);
            const decryption = new window.Olm.PkDecryption();
            let backupPubKey;
            try {
                backupPubKey = decryption.init_with_private_key(privKey);
                console.log("backupPubKey", backupPubKey.length, backupPubKey);
            } catch (e) {
                decryption.free();
                throw e;
            }
        });
    </script>
</body>
</html>
 
